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2283220 = 225114161
BaseRepresentation
bin1000101101011011010100
311021222222201
420231123110
51041030340
6120534244
725256422
oct10553324
94258881
102283220
11131a465
12921384
1361c324
14436112
1530179a
hex22d6d4

2283220 has 12 divisors (see below), whose sum is σ = 4794804. Its totient is φ = 913280.

The previous prime is 2283191. The next prime is 2283227. The reversal of 2283220 is 223822.

2283220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 715716 = 1252^2 + 846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2283227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57061 + ... + 57100.

It is an arithmetic number, because the mean of its divisors is an integer number (399567).

22283220 is an apocalyptic number.

2283220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2283220 is an abundant number, since it is smaller than the sum of its proper divisors (2511584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2283220 is a wasteful number, since it uses less digits than its factorization.

2283220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114170 (or 114168 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2283220 is about 1511.0327594066. The cubic root of 2283220 is about 131.6788181560.

The spelling of 2283220 in words is "two million, two hundred eighty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 114161 228322 456644 570805 1141610 2283220